There is more than enough rainwater if collected for an average home to be fully self sustainable
The Vision Water WaterCell™ is preserving and conserving the environment by significantly reducing mains water use and peak flow stormwater runoff for every property where it is installed.
Vision Water has been recognised by industry leaders for the development of WaterCell™, a truly sustainable rainwater harvesting system for all types of buildings.
The water demand for each type of building varies significantly with the population and the frequency of use of a particular building.
The storage capacity required for a building is a function of its water demand, the annual rainfall available and the frequency pattern of that rainfall. The ability of a particular building to achieve the predetermined storage capacity is a function of the roof area available to harvest the rainwater and the available floor area of the building to accommodate a sufficient number of WaterCells™ to store the required volume.
Buildings which are located in areas which receive consistent rainfall regularly, require a smaller storage capacity because they are continually topped up.
Buildings which are located in areas which have prolonged dry periods and intermittent storm bursts that yield very large volumes of rainwater over very short periods of time, require large storage capacity.
The larger capacity is required to ensure that the maximum harvest occurs with each deluge, but also to provide sustainability between rainstorms.
Although the entire east coast of Australia receives substantial annual rainfall, it is not unusual to experience dry weather periods of 6 to 8 weeks punctuated by torrential downpours over a 3 or 4-day period which may yield a harvest volume equivalent to 20% or 25% of the total annual usage for a particular building.
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